num = int(input())
shutu = 0
if 400 <= num <= 599:
  shutu = 8
elif 600 <= num <= 799:
  shutu = 7
elif 800 <= num <= 999:
  shutu = 6 
elif 1000 <= num <= 1199:
  shutu = 5  
elif 1200 <= num <= 1399:
  shutu = 4
elif 1400 <= num <= 1599:
  shutu = 3 
elif 1600 <= num <= 1799:
  shutu = 2 
elif 1800 <= num <= 1999:
  shutu = 1
else:
  shutu = 0
print (shutu) num = int(input()) num int(input()) int input() input shutu = 0 shutu 0 if 400 <= num <= 599:
  shutu = 8
elif 600 <= num <= 799:
  shutu = 7
elif 800 <= num <= 999:
  shutu = 6 
elif 1000 <= num <= 1199:
  shutu = 5  
elif 1200 <= num <= 1399:
  shutu = 4
elif 1400 <= num <= 1599:
  shutu = 3 
elif 1600 <= num <= 1799:
  shutu = 2 
elif 1800 <= num <= 1999:
  shutu = 1
else:
  shutu = 0 400 <= num <= 599 400 <= num 400 num 599 shutu = 8 shutu 8 elif 600 <= num <= 799:
  shutu = 7 600 <= num <= 799 600 <= num 600 num 799 shutu = 7 shutu 7 elif 800 <= num <= 999:
  shutu = 6  800 <= num <= 999 800 <= num 800 num 999 shutu = 6 shutu 6 elif 1000 <= num <= 1199:
  shutu = 5   1000 <= num <= 1199 1000 <= num 1000 num 1199 shutu = 5 shutu 5 elif 1200 <= num <= 1399:
  shutu = 4 1200 <= num <= 1399 1200 <= num 1200 num 1399 shutu = 4 shutu 4 elif 1400 <= num <= 1599:
  shutu = 3  1400 <= num <= 1599 1400 <= num 1400 num 1599 shutu = 3 shutu 3 elif 1600 <= num <= 1799:
  shutu = 2  1600 <= num <= 1799 1600 <= num 1600 num 1799 shutu = 2 shutu 2 elif 1800 <= num <= 1999:
  shutu = 1 1800 <= num <= 1999 1800 <= num 1800 num 1999 shutu = 1 shutu 1 shutu = 0 shutu 0 print (shutu) print shutu shutu = 0 0 shutu shutu = 3 3 shutu shutu = 6 6 shutu shutu = 5 5 shutu shutu = 4 4 shutu shutu = 2 2 shutu shutu = 0 0 shutu shutu = 1 1 shutu num = int(input()) int(input()) num shutu = 8 8 shutu shutu = 7 7 shutu
num = int(input())
shutu = 0
if 400 <= num <= 599:
  shutu = 8
elif 600 <= num <= 799:
  shutu = 7
elif 800 <= num <= 999:
  shutu = 6 
elif 1000 <= num <= 1199:
  shutu = 5  
elif 1200 <= num <= 1399:
  shutu = 4
elif 1400 <= num <= 1599:
  shutu = 3 
elif 1600 <= num <= 1799:
  shutu = 2 
elif 1800 <= num <= 1999:
  shutu = 1
else:
  shutu = 0
print (shutu)